550-1 Description.
Furnish, erect and reset metal fence of the type and at the locations shown in the Plans.
550-2 Types of Fence.
The types of fence are designated as follows: Type A (Farm Fence). Type B (Chain-Link Fence). Type R (Chain-Link Fence for Pedestrian Overpass).
550-3 Materials.
550-3.1 Type A Fence (Farm Fence): Meet the requirements of Section 954 for timber
posts and braces. For metal posts and braces, and for recycled plastic fence posts, meet the requirements of the Standard Plans . For the fabric and all other accessories, meet the requirements of the Standard Plans.
550-3.2 Type B Fence (Chain -Link): For the posts, braces, fabric and all accessories
other than the concrete for bases, meet the re quirements of the Standard Plans . Use concrete as specified in Section 347, or a premix approved by the Engineer for bases. The requirements contained in 347 -2.2, and 347 -3 will not apply.
550-3.3 Type R Fence (Chain -Link for Pedestrian Overpass): Use the fabric and
accessories specified in the Plans.
550-3.4 Resetting Fence: Use material from the existing fence. For any additional
materials required, provide the same type of material as in the existing fence and as specified herein, including gates whe n applicable.
550-3.5 Optional Use of Materials: For Type A Fence, a combination of steel,
aluminum, timber, recycled plastic or concrete posts may be used. Unless otherwise called for in the Plans, line posts of one material may be used with corner, pull and end post assemblies of a different material. The Engineer will permit the use of line posts of only one optional material and pull posts assemblies of only one optional material between corner and end post assemblies. Within individual corner and end post assemblies, the Engineer will allow the use of only one optional material. For Type B Fence, a combination of zinc -coated steel fence members, aluminum coated fence members and aluminum alloy fence members may be used. Unless otherwise indicated in the Plans, the Engineer will allow the use of only one type of fabric material, one type of line post material and one type of pull assembly material between corner and end post assemblies.
550-3.6 Certification: Provide the Engineer with certified test r eports from the
manufacturer confirming that all materials (posts, braces, fabric and all other accessories) conform to the requirements of this Section, Section 6 and the Standard Plans . Provide the Engineer a copy of the certification at least ten days p rior to fence construction. Also furnish the Engineer a Certificate of Compliance certifying that the fencing system, materials and construction practices comply with the applicable Standard Plans and Specifications. FY 2023-24 Return to Table of Contents Acceptance of furnished material wi ll be based on the Certificate of Compliance, accompanying test reports and visual inspection by the Engineer.
550-4 Construction Methods.
550-4.1 General: Install the fence in accordance with the specific requirements of this
Article and with the details shown on the Standard Plans for the particular type of fence called for, except for Type R Fence which shall be detailed in the Plans. Construct the fence in close proximity to the right of way line except as otherwise detailed in the Plans. Assume responsibility for obtaining satisfactory permits or permission from property owners for any encroachments required to perform the work, and for proper scheduling of the fence installation with the removal of existing fence where it is necessary to provide conti nuous security to adjacent areas already fenced. In order to meet this requirement, where necessary for maintaining security of livestock on adjacent property during construction of the new fence, the Engineer may require the erection and subsequent remova l of temporary fencing.
550-4.2 Spacing of Posts: Space posts as shown in the Standard Plans , within a tolerance
of 12 inches, except where definite spotting of corner posts is required. Ensure that in any line of fence, the over -spacings and the under -spacings shall approximately compensate. Set additional line posts at abrupt changes in grade.
550-4.3 Clearing: Where the clearing and grubbing for the project includes the area
occupied by the fence, clear the area to the limits shown in the Plans. If the limits are not shown in the Plans, clear the area at least 2 feet wide on each side of the fence line. The Engineer may direct that desirable trees be left in place and may restrict clearing where permission from the property owners cannot be obtained.
550-4.4 Construction Over Irregular Terrain and Other Obstructions :
550-4.4 1 Clearance of Bottom of Fence: Install the fence such that the bottom
of the fence, in general, follows the contour of the ground. The fence is detailed in the Plans at approximately 3 inches above finished graded surface. Over irregular ground, however, the Engineer will permit a mini mum clearance of 1 inch and a maximum of 6 inches for a length not to exceed 8 feet, and, for Type A fence, with the barbed wire spaced midway between ground and bottom of fabric.
550-4.4 2 Grading: Where necessary to secure proper vertical alignment and to
meet the clearance requirements, fill depressions (except where filling would obstruct proper drainage) and cut down knolls and ridges. Provide a substantial and permanent foundation for the fence.
550-4.4 3 Use of Extra -Length Posts. At locations wh ere it is impracticable to
adjust the ground level, the Engineer may require that posts of additional length be set and that the opening at the bottom be closed by additional barbed wire, stretched taut between poles, with no vertical distance between wire s greater than 3 inches. For all such posts requiring a concrete base, extend the concrete downward to the bottom of the extra -length post.
550-4.5 Setting Posts: If rock occurs within the required depth of the post hole, or
pavement which is to remain in place exists at the location of a post, drill a hole of a diameter slightly larger than the greatest dimension of the post or footing and grout in the post or footing. Set timber posts either by digging or by driving. Set recycled plastic fence posts in a ccordance with the Standard Plans .
550-4.6 Placing Fabric: Do not place fabric and barbed wire until the posts have been
permanently positioned and concrete foundations have attained adequate strength. Place the fabric by securing one end and applying suf ficient tension to remove all slack before making FY 2023-24 Return to Table of Contents permanent attachments at intermediate points. Fasten the fabric to all end, corner and pull posts by approved means. Fasten the fabric using tools designed for the purpose, in accordance with the manufactur er’s recommendations. Apply the tension for stretching by mechanical fence stretchers or with single -wire stretchers designed for the purpose.
550-4.7 Electrical Grounds:
550-4.7 1 Grounding for Overhead Lines: Wherever an overhead power line
crosses ov er the fence, install a ground rod directly below the point of crossing. Where an overhead power line runs parallel to, and within 100 feet of the fence, install a ground rod at each end of the fence and at intervals of no greater than 1,500 feet. Use copp er-clad steel ground rods that are a minimum of 8 feet in length and 1/2 inch in diameter. Drive the rod vertically until the top of the rod is approximately 6 inches below the ground surface. Connect a conductor of No. 6 AWG solid copper wire to the groun d rod and each metal fence element directly adjacent to the ground rod using non -corrosive ground rod clamps.
550-4.7 2 Fences with Non -Metal Posts: For all fences using non -metal posts,
substitute a metal post for a non -metal post at intervals of no gre ater than 300 feet with at least one metal post in any length of fence. Tightly fasten a galvanized steel wire to the barbed wire, fence fabric, and metal post.
550-5 Method of Measurement.
550-5.1 General: The quantities to be paid for will be plan quant ity for the number of
gates and the length of each type of fence constructed and accepted. In addition, extra payment will be made, in accordance with 550 -6.2, for additional lengths of post approved by the Engineer for the crossing of depressions in accor dance with 550 -4.4.3, muck areas, or other areas of inadequate support for a post of standard length.
550-5.2 Measurement of Fence Length, and Payment: The length of fence to be paid
for will be plan quantity completed and accepted. Measurement for resetting fence will be the actual length of existing fence reset, including gates when applicable.
550-6 Basis of Payment.
550-6.1 Basic Items of Fencing: The Contract unit price per foot for the item of fencing,
will be full compensation for all work and materials necessary for the complete installation, including line posts, corner, end, and pull posts. Such price and payment will include, but not be limited to, the following specific incidental work.
1.Any work required to level and prepare the terra in along the line of the fence.
2.Any additional clearing incidental to construction of the fence.
3.All preparation for post holes, in whatever type of material, as specified herein.
4.Any furnishing and installing of electrical grounds.
5.Any additional work or materials required for special construction over irregular terrain, or terrain of inadequate support for the posts, including the additional barbed wire, but not including the extra lengths of posts ordered by the Engineer.
6.Any cost of erection and removal of any temporary fencing, which may be necessary for maintaining security of livestock, etc., on adjacent property during construction of the new fence.
550-6.2 Payment Rates for Extra -Length Posts: Any extra length posts added t o
complete installation of the fence will require an invoice. The Contractor will be compensated for invoice price plus 10% as payment for any extra length posts. FY 2023-24 Return to Table of Contents The standard length of steel, recycled plastic and aluminum posts will be the required leng th as indicated in the Plans or Standard Plans for each type and case. The payment for additional length of post will include the cost of additional concrete to extend concrete bases, as applicable.
550-6.3 Gate Payment: The quantities to be paid for wi ll be full compensation for all
labor, materials, posts , and associated hardware for the complete installation of the type gate specified in the Plans, and accepted by the Engineer.
550-6.4 Payment Items: Payment shall be made under:
Item No. 550 - 10- Fencing - per foot. Item No. 550 - 60- Gates - each. FY 2023-24 Return to Table of Contents SECTION 555 DIRECTIONAL BORE
555-1 Description.
555-1.1 Scope of Work: The work specified in this Section documents the approved
construction methods and procedures for directional boring, also commonly called horizontal directional drilling (HDD).
555-1.2 General: HDD is a trenchless method for installing a product that serves as a
carrier pipe for transporting solids, liquids or gasses (under pressure or gravity flow), or serves as a conduit, casing, or duct for a carrier pipe, cable, or wire line products. It is a multi -stage process consisting of site preparation and restoration, equipment setup, and drilling a pilot bore along a predetermined path and then pulling the product back through the drilled space. When necessary, enlargement of the pilo t bore hole may be necessary to accommodate a product larger than the pilot bore hole size. This process is referred to as back reaming and is done at the same time the product is being pulled back through the pilot bore hole. Accomplish alignment of the bore by proper orientation of the drill bit head as it is being pushed into the ground by a hydraulic jack and determine orientation and tracking of the drill bit. In order to minimize friction and prevent collapse of the bore hole, introduce a soil stabilizing agent (drilling fluid) into the annular bore space from the trailing end of the drill bit. Select or design drilling fluids for the site specific soil and ground water conditions. Confine free flowing (escaping) slurry or drilling fluids at the gr ound surface during pull back or drilling. Remove all residual slurry from the surface and restore the site to preconstruction conditions.
555-2 Construction Site Requirements.
555-2.1 Pedestrian Traffic : When and where installations temporarily disrupt u se of a
pedestrian way , provide a safe alternate route in accordance with Standard Plans, Indexes 102- 600 and 102 -660.
555-2.2 Site Conditions:
1.Carry out excavation for entry, exit, recovery pits, slurry sump pits, or any other excavation as specifie d in Section 120. Sump pits are required to contain drilling fluids if vacuum devices are not operated throughout the drilling operation, unless approved by the Engineer.
2.Within 48 hours of completing installation of the product, clean the work site o f all excess slurry or spoils. Take responsibility for the removal and final disposition of excess slurry or spoils. Ensure that the work site is restored to pre -construction conditions or as identified on the plans.
3.Provide MOT in accordance with the Standard Plans and the MUTCD when and where the former is silent.
4.Exposure of product shall be limited to 3 feet and 14 consecutive days unless approved by the Engineer.
555-2.3 Damage Restoration: Take responsibility for restoration for any damage caused
by heaving, settlement, separation of pavement, escaping drilling fluid (frac -out), or the directional drilling operation, at no cost to the Department.
555-2.3 1 Remediation Plans: When required by the Engineer, provide detailed
plans which show how damage to any roadway facility will be remedied. These details will FY 2023-24 Return to Table of Contents
Source: Florida Standard Specifications for Road and Bridge Construction, 2024 Edition. Pages 783–786 of 1,299.